njrat | 3cedcaa57838104537dc40e995eda9e8ad88c854192eab36e5a50d3922c969ff

General

Target

sample.exe
Size

40KB
MD5

a9757714575730226fede0eecf4f4ae9
SHA1

2b4f2e2f768341c7d0648dc7ae3ac36174bfcd02
SHA256

057b75b211de20c064b338e0a14bfe30456d23c19e0a0c5347704d262b950a06
SHA512

3ea0be91b9e862145eaa1b8d92c2c8675bdbffa075d2183ef31abd6f6eed0dfecd886b8225397bdea9b616c121a52a6b7647e000fdeee0117611b8135be2c5ab
SSDEEP

384:tlbTkCTZu/h/2uXMd2nOOrgkOU7TtKD9E5ouIEZGdjkTbsq42WuGLW6I31Yk5gbn:tqGZ4MQ9tswZ8My27YpjbQO

Score

10^/10

njrat hacked evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

basheers.no-ip.biz:802

Mutex

b4488cccbca8d5923127abf4aa20e797

Attributes

reg_key
b4488cccbca8d5923127abf4aa20e797
splitter
|'|'|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4660	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	sample.exe

Executes dropped EXE 1 IoCs

pid	Process
3596	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b4488cccbca8d5923127abf4aa20e797 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b4488cccbca8d5923127abf4aa20e797 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 3596	2340	sample.exe	84
PID 2340 wrote to memory of 3596	2340	sample.exe	84
PID 3596 wrote to memory of 4660	3596	server.exe	88
PID 3596 wrote to memory of 4660	3596	server.exe	88

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3596
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:4660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
40KB

MD5
a9757714575730226fede0eecf4f4ae9

SHA1
2b4f2e2f768341c7d0648dc7ae3ac36174bfcd02

SHA256
057b75b211de20c064b338e0a14bfe30456d23c19e0a0c5347704d262b950a06

SHA512
3ea0be91b9e862145eaa1b8d92c2c8675bdbffa075d2183ef31abd6f6eed0dfecd886b8225397bdea9b616c121a52a6b7647e000fdeee0117611b8135be2c5ab

Download Submit
memory/2340-3-0x000000001BBF0000-0x000000001BC96000-memory.dmp

Filesize
664KB

Download
memory/2340-1-0x000000001BB30000-0x000000001BB3C000-memory.dmp

Filesize
48KB

Download
memory/2340-0-0x00007FF995F15000-0x00007FF995F16000-memory.dmp

Filesize
4KB

Download
memory/2340-4-0x000000001C170000-0x000000001C63E000-memory.dmp

Filesize
4.8MB

Download
memory/2340-5-0x00007FF995C60000-0x00007FF996601000-memory.dmp

Filesize
9.6MB

Download
memory/2340-2-0x00007FF995C60000-0x00007FF996601000-memory.dmp

Filesize
9.6MB

Download
memory/2340-20-0x00007FF995C60000-0x00007FF996601000-memory.dmp

Filesize
9.6MB

Download
memory/3596-18-0x00007FF995C60000-0x00007FF996601000-memory.dmp

Filesize
9.6MB

Download
memory/3596-19-0x00007FF995C60000-0x00007FF996601000-memory.dmp

Filesize
9.6MB

Download
memory/3596-21-0x000000001C2F0000-0x000000001C38C000-memory.dmp

Filesize
624KB

Download
memory/3596-22-0x0000000000FF0000-0x0000000000FF8000-memory.dmp

Filesize
32KB

Download
memory/3596-23-0x00007FF995C60000-0x00007FF996601000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads